These πρ€ξεις (or περίοδοι, as they are often called) Πέτρου were of heretical origin, according to Lipsius, and belonged, like the heretical Acta Pauli (referred to in note 20, below), to the collection of περίοδοι τῶν ἀποστόλων, which were ascribed to Lucius Charinus, and, like them, formed also, from the end of the fourth century, a part of the Manichean Canon of the New Testament. The work, as a whole, is no longer extant, but a part of it is preserved, according to Lipsius, in a late Catholic redaction, under the title Passio Petri. Upon these Acts of Peter, their original form, and their relation to other works of the same class, see Lipsius, Apocryphen Apostelgeschichten, II. I, p. 78 sq. Like the heretical Acta Pauli already referred to, this work, too, was used in the composition of the Catholic Acts of Paul and Peter, which are still extant, and which assumed their present form in the fifth century, according to Lipsius. These Catholic Acts of Peter and Paul have been published by Thilo (Acta Petri et Pauli, Halle, 1837), and by Tischendorf, in his Acta Apost. Apocr., p. 1–39. English translation in the Ante-Nicene Fathers (Am. ed.), VIII. p. 477.